Marathon Calendar Ontario 2025-2026

Sep

13-14

Sa - Su

Tobermory Trail Race

Tobermory, Ontario

Trail Run 5 km 7 km Half Marathon Marathon

Sep

20

Saturday

That Dam Hill

Byron, Ontario

5 km Half Marathon ... 12 hr 24 hr

Oct

5

Sunday

Muskoka Marathon

Bracebridge, Ontario

5 km 10 km Half Marathon Marathon

Oct

5

Sunday

The County Marathon

Prince Edward, Ontario

5 km Half Marathon Marathon

Oct

12

Sunday

Fall Colours Run

Ottawa, Ontario

3 km 5 km ... Half Marathon Marathon

Oct

18-19

Sa - Su

Toronto Waterfront Marathon

Toronto, Ontario

5 km Half Marathon Marathon

Oct

18-19

Sa - Su

Toronto Waterfront Marathon Long Run

Toronto, Ontario

5 km Half Marathon Marathon

Oct

26

Sunday

Niagara Falls Marathon

Niagara Falls, Ontario

5 km 10 km Half Marathon Marathon

Nov

1

Saturday

Hamilton Marathon Road2Hope

Hamilton, Ontario

5 km 10 km Half Marathon Marathon

Feb

15

Sunday

Embrace Winter Run

Ottawa, Ontario

3 km 5 km ... Half Marathon Marathon

Apr

26

Sunday

Beneva Mississauga Marathon

Mississauga, Ontario

5 km 10 km Marathon

May

3

Sunday

Georgina Spring Fling

Georgina, Ontario

5 km 10 km Half Marathon Marathon

May

3

Sunday

Toronto Marathon

Toronto, Ontario

5 km 10 km Half Marathon Marathon

May

23-24

Sa - Su

Tamarack Ottawa Race Weekend

Ottawa, Ontario

5 km 10 km Half Marathon Marathon

Jun

20

Saturday

Community Strong Race

Sault Ste. Marie, Ontario

5 km 10 km Half Marathon Marathon

Jul

4

Saturday

The Limberlost Challenge

Huntsville, Ontario

Trail Run 7 km 14 km ... Marathon 56 km

Aug

8

Saturday

Falling Water Trail Marathon

Eugenia, Ontario

Trail Run Half Marathon Marathon